diff options
Diffstat (limited to 'src/shared/sha1.c')
| -rw-r--r-- | src/shared/sha1.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/src/shared/sha1.c b/src/shared/sha1.c deleted file mode 100644 index e67b020d..00000000 --- a/src/shared/sha1.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * - * Connection Manager - * - * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <string.h> - -#include <glib.h> - -#include "src/shared/sha1.h" - -#define SHA1_MAC_LEN 20 - -static void __hmac_sha1(GChecksum *checksum, const void *key, size_t key_len, - const void *data, size_t data_len, void *output) -{ - unsigned char ipad[64]; - unsigned char opad[64]; - unsigned char digest[SHA1_MAC_LEN]; - size_t length; - int i; - - /* if key is longer than 64 bytes reset it to key=SHA1(key) */ - if (key_len > 64) { - g_checksum_update(checksum, key, key_len); - length = sizeof(digest); - g_checksum_get_digest(checksum, digest, &length); - - g_checksum_reset(checksum); - - key = digest; - key_len = SHA1_MAC_LEN; - } - - /* start out by storing key in pads */ - memset(ipad, 0, sizeof(ipad)); - memset(opad, 0, sizeof(opad)); - memcpy(ipad, key, key_len); - memcpy(opad, key, key_len); - - /* XOR key with ipad and opad values */ - for (i = 0; i < 64; i++) { - ipad[i] ^= 0x36; - opad[i] ^= 0x5c; - } - - /* perform inner SHA1 */ - g_checksum_update(checksum, ipad, sizeof(ipad)); - g_checksum_update(checksum, data, data_len); - length = sizeof(digest); - g_checksum_get_digest(checksum, digest, &length); - - g_checksum_reset(checksum); - - /* perform outer SHA1 */ - g_checksum_update(checksum, opad, sizeof(opad)); - g_checksum_update(checksum, digest, length); - length = sizeof(digest); - g_checksum_get_digest(checksum, output, &length); - - g_checksum_reset(checksum); -} - -int hmac_sha1(const void *key, size_t key_len, - const void *data, size_t data_len, void *output, size_t size) -{ - GChecksum *checksum; - - checksum = g_checksum_new(G_CHECKSUM_SHA1); - - __hmac_sha1(checksum, key, key_len, data, data_len, output); - - g_checksum_free(checksum); - - return 0; -} - -static void F(GChecksum *checksum, const char *password, size_t password_len, - const char *salt, size_t salt_len, - unsigned int iterations, unsigned int count, - unsigned char *digest) -{ - unsigned char tmp1[SHA1_MAC_LEN]; - unsigned char tmp2[SHA1_MAC_LEN]; - unsigned char buf[36]; - unsigned int i, j; - - memcpy(buf, salt, salt_len); - buf[salt_len + 0] = (count >> 24) & 0xff; - buf[salt_len + 1] = (count >> 16) & 0xff; - buf[salt_len + 2] = (count >> 8) & 0xff; - buf[salt_len + 3] = count & 0xff; - - __hmac_sha1(checksum, password, password_len, - buf, salt_len + 4, tmp1); - memcpy(digest, tmp1, SHA1_MAC_LEN); - - for (i = 1; i < iterations; i++) { - __hmac_sha1(checksum, password, password_len, - tmp1, SHA1_MAC_LEN, tmp2); - memcpy(tmp1, tmp2, SHA1_MAC_LEN); - - for (j = 0; j < SHA1_MAC_LEN; j++) - digest[j] ^= tmp2[j]; - } -} - -int pbkdf2_sha1(const void *password, size_t password_len, - const void *salt, size_t salt_len, - unsigned int iterations, void *output, size_t size) -{ - GChecksum *checksum; - unsigned char *ptr = output; - unsigned char digest[SHA1_MAC_LEN]; - unsigned int i; - - checksum = g_checksum_new(G_CHECKSUM_SHA1); - - for (i = 1; size > 0; i++) { - size_t len; - - F(checksum, password, password_len, salt, salt_len, - iterations, i, digest); - - len = size > SHA1_MAC_LEN ? SHA1_MAC_LEN : size; - memcpy(ptr, digest, len); - - ptr += len; - size -= len; - } - - g_checksum_free(checksum); - - return 0; -} - -int prf_sha1(const void *key, size_t key_len, - const void *prefix, size_t prefix_len, - const void *data, size_t data_len, void *output, size_t size) -{ - GChecksum *checksum; - unsigned char input[1024]; - size_t input_len; - unsigned int i, offset = 0; - - checksum = g_checksum_new(G_CHECKSUM_SHA1); - - memcpy(input, prefix, prefix_len); - input[prefix_len] = 0; - - memcpy(input + prefix_len + 1, data, data_len); - input[prefix_len + 1 + data_len] = 0; - - input_len = prefix_len + 1 + data_len + 1; - - for (i = 0; i < (size + 19) / 20; i++) { - __hmac_sha1(checksum, key, key_len, input, input_len, - output + offset); - - offset += 20; - input[input_len - 1]++; - } - - g_checksum_free(checksum); - - return 0; -} |